Lumen Technologies to Sell Quantum Fiber Business to AT&T for $5.75 Billion
Lumen Technologies, the owner of CenturyLink, has agreed to sell its consumer fiber business, Quantum Fiber, to AT&T for $5.75 billion in cash, as announced by the two companies on Wednesday.
AT&T will acquire nearly 1 million fiber subscribers and plans to transfer them to its AT&T Fiber network. The deal is expected to be completed in the first half of 2026.
Lumen has been expanding its Quantum Fiber network in metro Denver and will focus on its backbone fiber network and large data users after the sale.
AT&T Fiber will gain access to customers in several major metro areas, while Lumen will use the proceeds to pay down debt and invest in its core business.
“We are focusing on serving enterprise customers and enhancing our financial flexibility with this transaction,” said Kate Johnson, president and CEO of Lumen.
The sale will allow Lumen to reduce its debt and interest expenses, while freeing up resources for its enterprise business.
AT&T’s acquisition of Quantum Fiber represents a significant investment in U.S. connectivity infrastructure and will create jobs in multiple regions across 11 states.
AT&T Fiber plans to double its network by 2030, expanding fiber access to more homes and businesses.
Quantum Fiber has extensive coverage in many Denver neighborhoods but is less prevalent in outer suburbs and rural areas.
Overall, the sale of Quantum Fiber to AT&T marks a strategic move for both companies in the evolving telecommunications landscape.
